Malicious PDF — malware analysis report

Static analysis result for SHA-256 602f7d68a4afa229…

MALICIOUS

PDF

54.8 KB Created: 2020-08-22 19:45:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: fcc98c210129e1ab7e4b7cbed6a71135 SHA-1: c24bf6ecea1bf55f498b4e1672ea8eafa73da584 SHA-256: 602f7d68a4afa229622a2aaac6596c401c50532f8fd1247625efe7e63b97695d
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains embedded links, with one specifically pointing to a known malicious redirector. The document body, though heavily obfuscated, contains a reference to 'notepad plugins manager' and a URL that aligns with the malicious redirector. The presence of numerous external PDF links suggests a link farm or SEO poisoning attempt to distribute malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://ttraff.com/pify?keyword=notepad+plugins+manager
    • http://files.northstatekleekai.com/uploads/1/3/2/7/132740498/merogef_mitijiraxe_fezav_vaxojebof.pdf
    • http://files.momonthego2.com/uploads/1/3/1/4/131437711/rofuvajari.pdf
    • http://files.familyminded.com.au/uploads/1/3/0/8/130874067/gofamiferexowutelako.pdf
    • http://fopazif.titansinvite.com/uploads/1/3/0/7/130776255/ramiwuzaju_tirotuz.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.opentle.org
    • https://cdn.shopify.com/s/files/1/0436/5503/7093/files/happy_birthday_piano_score.pdf
    • https://cdn.shopify.com/s/files/1/0453/9475/5752/files/nickel_iron_alloys.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/47475247643.pdf
    • https://cdn.shopify.com/s/files/1/0431/6200/9760/files/laxiguzajodofozexabekux.pdf
    • https://cdn.shopify.com/s/files/1/0429/2755/4723/files/30053872555.pdf
    • https://cdn.shopify.com/s/files/1/0432/9114/8454/files/30226096433.pdf
    • https://cdn.shopify.com/s/files/1/0436/8993/5002/files/nuluxomarimudozizug.pdf
    • https://cdn.shopify.com/s/files/1/0436/9537/4489/files/jonakisodujazug.pdf
    • https://cdn.shopify.com/s/files/1/0433/9063/2101/files/nomigafosadazopadopawinof.pdf
    • https://cdn.shopify.com/s/files/1/0430/3156/0354/files/34731985501.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL
    • http://www.gnu.org/licenses/gpl.html

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007e59.bin
559e8e207a993a3bcd3646f83134b25d1c4cc3bc5f10f339d0232031524f7e78		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7E59 5248 bytes
font_01_sfnt_off0000900e.bin
cb159cc9d714520fdf604515834a8e5d6ccdf81551317d8133b939af7313f940		 pdf-font-stream PDF embedded font (sfnt) at offset 0x900E 6068 bytes
font_02_sfnt_off00009fbe.bin
768c2a2929cf8d5f4b09551b7978cb9f27bef55197fa7dd8e2e6f0ec24bdd7ab		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9FBE 14980 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.